.file_picker {
    position: relative;
    display: inline-block;
    background: #23C6C8;
    border: 1px solid #99D3F5;
    border-radius: 4px;
    padding: 4px 12px;
    overflow: hidden;
    color: white;
    text-decoration: none;
    text-indent: 0;
    line-height: 20px;
}

.file_picker input[type=file] {
    position: absolute;
    font-size: 100px;
    right: 0;
    top: 0;
    opacity: 0;
}

.file_picker:hover {
    background: #23C6C8;
    border-color: #78C3F3;
    /*color: #004974;*/
    text-decoration: none;
}

.file_list {
    list-style: none;
}

.file_list li {
    position: relative;
    display: inline-block;
    margin: 4px;
    text-align: center;
    border-radius: 4px;
    overflow: hidden;
}

.file_list li img.up_file {
    vertical-align: middle;
}

.file_list li div.banner {
    position: absolute;
    display: none;
    top: 0px;
    left: 0px;
    right: 0px;
    height: 26px;
    line-height: 26px;
    background-color: black;
}

.file_list li div.banner span {
    cursor: pointer;
    color: white;
}

.opacity80 {
    /*支持 IE 浏览器*/
    filter: alpha(opacity=80);
    /*支持 FireFox 浏览器*/
    -moz-opacity: 0.80;
    /*支持 Chrome, Opera, Safari 等浏览器*/
    opacity: 0.80;
}

.opacity50 {
    /*支持 IE 浏览器*/
    filter: alpha(opacity=50);
    /*支持 FireFox 浏览器*/
    -moz-opacity: 0.50;
    /*支持 Chrome, Opera, Safari 等浏览器*/
    opacity: 0.50;
}